org.apache.shardingsphere.core.merge.dql.groupby.aggregation

Class AccumulationAggregationUnit

java.lang.Object

org.apache.shardingsphere.core.merge.dql.groupby.aggregation.AccumulationAggregationUnit

All Implemented Interfaces:

AggregationUnit

public final class AccumulationAggregationUnit
extends Object
implements AggregationUnit

Accumulation aggregation unit.

Author:

zhangliang

Constructor Summary

Constructors

Constructor and Description
AccumulationAggregationUnit()

Method Summary

Modifier and Type	Method and Description
Comparable<?>	getResult() Get aggregation result.
void	merge(List<Comparable<?>> values) merge aggregation values.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AccumulationAggregationUnit

public AccumulationAggregationUnit()

Method Detail

merge

public void merge(List<Comparable<?>> values)

Description copied from interface: AggregationUnit

merge aggregation values.

Specified by:

merge in interface AggregationUnit

Parameters:

values - aggregation values

getResult

public Comparable<?> getResult()

Description copied from interface: AggregationUnit

Get aggregation result.

Specified by:

getResult in interface AggregationUnit

Returns:

aggregation result